Ski edge



"'Sept; 8, 1942.' w. FgsERR 2,295,185

. l sx1, EDGE l Filed Maren 2e, 1941 3 sheets-sheet `1 Ffm/YT /7) /5' ,4-im Q/@d N O 1 INVENToR: {R} William /1' Serf?,

e I BY @-5 Si. @mA/ M M ff ATTORNEY w. F. s'ERR Sept. 8, 1942.

SKI EDGE Filed March 26, 1941 y 3 Sheets-Sheet 2 INVENTOR h//Y/l'amF5617" ATTORNEY ASS.

sept. s, 1942.

W. F. S'ERR SKI EDGE Filed Marbh 26, 1941 3S'heets'sheet 3 INVENTORWllzdffz Zerr @QW y ATTQIEY Patented Sept. 8, 1942 SKI EDGE William F.Serr, New York, N. Y., assignor, by mesne assignments, to EricPusinelli, New York,

Application March 26, 1941, Serial No. 385,248

' 7 claims. (c1. 28o-11.13)

The invention relates to skis and more particularly to metal reenforcingstrips commonly known as ski edges.

According to one form which the invention may assume, the ski edge ismade up of sections or lengths, each section comprising an inner and anouter strip suitably welded together. The inner strip has spaced keyholeslots, the narrow ends of which are beveled and undercut to seat levelheaded screws. The outer strips have holes in line with the screws butof smaller diameter than the screw heads, through which a screw drivermay be inserted for driving the screws home. Extra holes may be providedin the inner strip for flexibility and the holes in the outer strip maybe suitably filled up with plastic after the edge is mounted on the ski.If desired, the ends of the inner strips may be provided with notches onone end and tongues on the other, which intert to assist 'in aligningand locking the sections of ski edge. Furthermo-re, if desired, the sidewalls of the laminated ski edges may be hollow ground to provide sharpercorners on the outer edges of the ski edge to reduce side slipping.

CFI

The ski edge sections may be made either withKA the tongues facingforward or backward. In the event the tongues face forward, a naturalshingle effect is obtained, insuring absence of any forward facingtransverse edges or ribs on which the snow may catch and slow up theski. In the event the tongues face backward, it is desirable to placethe screws close to the forward ends of the sections to insure holdingdown tight the forward ends of the sections which overlap theV reartongues to prevent catching on the snow and slowing down the ski.

In some cases the outer and inner lamination of the ski edge may beseparable, the inner strip being permanently fastened to the ski bysuitable screws passing through longitudinal slots. The inner strip mayhave suitable keyhole slots and the outer strip may be provided withintegral beveled projections which cooperate with the keyhole slots tohold the outer strips in position.

The invention also consists in certain new and original features ofconstruction and combination of parts hereinafter set forth and claimed.

Although the novel features which are believed to be characteristic ofthis invention will be particularly pointed out in the claims appendedhereto, the invention itself, as to its objects and advantages, and the`manner in which it may be carried out, may be better understood byreferring to the following description taken in connection with theaccompanying drawings forming a part thereof, in which Fig. 1 is afragmentary plan View of the bottom of a ski equipped with my invention;

Fig. 2 is a plan View illustrating several sections of my ski edgedetached from the ski, locking at the side of the edge which faces theski;

Fig. 3 is a plan view of a section of my ski edge, looking at the outerside thereof or that surface which contacts the snow;

Fig. 4 is a greatly enlarged fragmentary section taken on the line 4-4of Fig. 1;

Fig. 5 is a, fragmentary perspective showing the manner of interlockingtwo adjoining sections of ski edge;

Figs. 6, 7 and 8 are transverse sections taken on the lines 6 6, l-'iand 8 8 of Fig. 4;

Fig. 9 is a fragmentary side elevation of a ski showing the manner ofapplying my edge to the ski;

Fig. 10 is a view corresponding to Fig. 2, but of a modified form of skiedge;

Fig. 11 is a side elevation showing the ski edge of Fig. 10 attached toa ski;

Fig. 12 is an enlarged, fragmentary, bottom plan view of still anotherembodiment of my invention;

Fig. 13 is a longitudinal cross-sectional view taken along the line|3--l3 of Fig. 12;

Fig. 14 is a transverse cross-sectional view taken along the line lll-I4of Fig. 13;

Fig. 15 is a perspective, fragmentary view of the two interlockingstrips illustrated in Figs. 12-14 inclusive, indicating the method ofassembling these strips;

Fig. 16 is a, fragmentary, transverse, cross-sectional view illustratinga modification of the edge construction of Fig. 12; and

Fig. 17 is a transverse cross-sectional view illustrating an applicationof the construction of Figs. 12-14 to a center insert strip.

In the following description and in the claims, various details will beidentified by specific names for convenience, but they are intended tobe as generic in their application as the art will permit.

Like reference characters denote like parts in the several figures ofthe drawings.

In the drawings accompanying and forming A part of this specification,certain specic disclosure of the invention is made for purposes ofexplanation, but it will be understood that the details may be modifiedin various respects without departure from the broad aspect of theinvention.

Referring now to the drawings and more particularly to the form of theinvention shown in Figs. l-9, inclusive, the reference character I3denotes the body of a conventional ski which has applied thereto alongthe lateral edges thereof the metallic sectional edge strips indicatedby I I. These edge strips or ski edges are made up of a base strip I2,which is preferably constituted of a strip of steel easily machined, andis provided at spaced intervals with keyhole slots I3 and holes I 4.

A second, outer strip, preferably of hard tempered steel, denoted by I5,and having holes I6, is superimposed upon the strip I2 and the twostrips I2 and I5 are suitably attached together as by spot welding atpoints indicated by I9. This assembly of the two steel strips makes up aunitary structure, a plurality of which are arranged in line and ttogether to form the continuous ski edges II, as will be understood bythose skilled in the art.

Itwill be noted that the outer strips I5k have straight ends whichdirectly abut (see Fig. 5) while the inner or base strips I2 havecooperating notches II on'one end into which t tongues i8 on the otherend. These cooperating tongues and notches assist in assembling the skiedges and in holding the sections thereof in alignment.

The bayonet slots I3 have a narrower end 2I beveled, as indicated by 22,to t the beveled heads of screws2-S. The larger parts of the bayn cnetslots I3 are of substantially the same width as the wider sides ofthe'beveled portions 22. The holes I5 in the outer bars I5 are beveledat their inner and outer edges as denoted by 24, for a purposehereinafter described, and the minimum diameter of the holes I6 isapproximately equal'to the minimum dimension of the beveled portions 22of the keyhole slots.

The side walls or edges of the sectional strips I i may be hollow groundas denoted by 25 arrd26 (Figs. 6-8) to smoothoif these edges and to makesharper corners to insure le'ss side slipping of the ski on the snow.

To apply the ski edges to the wooden ski; the latter is rst channeled asindicated by 21 (Figs. 6-8) and is then provided with a plurality ofdrill holes I corresponding to the holes IS, using the ski edge as atemplet if desired. The screws 23 arethen placed in theirl keyhole slotsI3 by inserting the heads in the wide portions thereof and sliding thescrews lengthwise of the slots to snugly engage the bevel portions 22,the assembled edge and screws being indicated in Fig. 9.

This edge is assembled from front of ski to rear, a front section Abeing indicated already in position in Fig. 9. To apply the succeedingedge assembly indicatedby B in Fig. 9, it is only necessary to insertthe screws in their respective holes in the ski and screw the screwshome into the wood, the holes I I permitting access of the screw driverinto the screw driver slots in the screw heads. The end of the outer barI5 of section B (Fig. 9) overlies the tongue I8 of the adjacent sectionA, the tongue I 3 fitting into the notch I'I.

In the same way the successive sections of ski edge will be applieduntil the desired length is equipped, after which the holes I Ei may beplugged up with plastic wood, or cement, or ski wax, the inner bevelportion 24 assisting in holding the plastic filler material in position.

Referring now to the modification shown in Figs.. and 11, thisconstruction is quite similar to the ski edge above described, the skibody here being denoted by 33, the inner strip by 3|, the outer strip by32. The holes in the inner strip are denoted by 33, the keyhole slots by34, the holes in the outer strip by 35 and the screws by 35. The innerstrips have notches 31 in one end, which receive tongues 38 in the otherend of the adjoining strips and the strips are welded together at thepoints indicated by 39, as in the preceding form.

The form illustrated in Figs. 10 and 11 is applied to the ski very muchlike the form above described, except that the strips are applied fromthe rear of the ski toward the tip. This form has the advantage that theends of the strips overlying the tongues 38 are forward of the adjoiningends, so that any misalignment or defect which may cause the surface ofthe overlying end to protrude slightly above the surface of theadjoining section will not interfere with the smooth running ofthe ski,since as the ski'slides on the snow, a shingle effect is obtained, thiseffect being similar to the shingle effect of water sliding down ashingled roof of a house. This effect is-indicated insomewhatvexaggerated degree at C in Fig. 11.

The principal )difference between the form shown in Figs. 1I) and 11 andthe form first described'is the fact that the screws are not locatedso-close to the endsy in Figs. 10 and 11 and in Figs. l-8. In Figs. 1-8the screws are located close to-the ends `for the purpose ofY positivelyholding down these overlying ends and preventing any raising of the endswhich might catchV on the snowV and slow up the ski. This precaution isnot necessary in Figs. 10 and 11 in view of the shingle effect abovedescribed. In each case itwill be seen that the narrow part of thekeyhole slots faces forward so that the drag of the snow -on the skiedge will always tend to keep the screws tightly engagedin the narrowends of the keyhole slots.

The construction above described has many advantages which will beobvious to skiers and ski repair men. The outer or running strip of thecomposite ski edge` having holes smaller in diameter than they screwheads actually forces the screws in during skiing instead of allowingthem to loosen and fall out. The beveled edges of the holes on the outerstrips'insures the removal of burrs onthe'outer surface-of the ski andhelps retain the filled-in plastic wood or hard wax. The beveledkeyholeslots effect -a fastening to the screws and yet permit play forcontraction-and expansion of the ski edge. The holes between the keyholeslots lighten theski edge and make it more flexible.

The drilling and centering of the screw holes may be'accomplished byusing the edge itself as a templet before the screws are inserted, andspeedy attaching is obtained by assembling the screws and the edgesfirst before attaching to the ski. The holes in the outer strips permitvaccess of the screw driver to the screws for easy assembly; The tonguesand notches assist inaligning up the adjoining sections and hold them infirm interlocked relation. The hollow ground construction of the sideedges not only insures smooth edges, but also sharpens the corners,decreasing side slipping.

Referring now particularly to Figs. 12 to 17, inelusive, thereis-illustrated still another embodiment `of my invention. In-thisembodiment, the base strip-is provided withT-slots and the `top or outerstrip is provided with lugs or the like for detachably connecting thetop or outer strip to the base strip.

The wooden ski |36 is provided with channeled edges i2, as illustrated,and a metallic base strip l|| is inserted in each edge and is secured tothe ski by screws |62 extending through suitably arranged, countersunkelongate openings |03 in the base strip lill. Each base strip thereby issecurely and more or less permanently secured to the ski.

The elongate openings |03 are beveled along their longitudinal edges tofit the screw heads as shown but are sufficiently long to provide roomfor two or more screws. This is of advantage in requiring less accuracyin drilling theV holes in the wooden ski iil to take the screws |02 andalso provides room to put a second screw in the same hole if for anyreason it is desired to do so, as for example, if the rst screw breaks.v

The base strip lill is provided with a plurality of spaced, keyholeslots |55 each of which is provided with an enlarged portion |95 and anarrow portion ii. The side walls of the narrow portion |01 aredivergent as illustrated particularly in Fig. 14. The base strip may beprovided, if desired, with a plurality of openings |04 for the purposeof reducing the weight of the strip and rendering it more flexible.

A metallic top or outer strip lill is provided and has a plurality oflugs projecting therefrom at locations so disposed as to register withthe enlarged portions of the keyhole slots N5 of the base strip ii whenthe two strips are superposed. The lugs may be formed in any suitablemanner and may be constituted by rivets, or

screws, or may be formed as integral portions of the top or outer stripl. The lugs l are so positioned and are of such size that they enter theenlarged portions IB of the keyhole slots |05 and upon movement of thestrip HB toward the rear of the ski longitudinally of the strip IIJ I,the lugs |I| enter and are firmly gripped by the narrow portions |01respectively of the slots. Thus the top or outer strip lil is lockedsecurely in position.

In Fig. 16 there is illustrated a modification of the construction ofFigs. l2 to 15, inclusive. In this embodiment of the invention thewooden ski |2 is provided with a channeled portion |28 which receives abase strip |2| generally similar in construction to the base strip |0|above described. However, the base strip |2| has secured thereto orformed as an integral part thereof a flange or extension |22 which hasan outer edge generally ilush with the outer edge of the base strip |2|.Where the extension |22 is separately formed and is secured to the basestrip |2| it may be secured by welding as indicated by the referencecharacter |23.

It will be seen that the extension |22 provides with the opposite edgeof the paneled portion |28 of the ski a seat for a top or outer strip|24 which may be formed from non-metallic material such as an artificialresin, and preferably a fabric-reinforced artificial resin. The top orouter strip |24 may be provided with a plurality of lugs |25 which maybe constituted by screws threaded into the strip |2i. The lugs |25 thenfunction in a manner generally analogous to the lugs above described forthe purpose of securing the top or outer strip |24 to the base strip|2|.

The inventive concept illustrated by Figs. l2 to 15, inclusive, may beapplied to a center strip or insert as illustrated particularly in Fig.17. The wooden ski |30 is provided with a central channel |32 in whichis disposed a base strip ISI; constructed generally like the base strip`lill vabove described. The top or outer strip |35 is secured to thebase strip |3| by means of lugs |34 which are inserted in and cooperatewith keyholes |33 in the base strip |3|.. As illustrated in Fig. 17, thebase strip |3| or top or outer strip E35 may be of somewhat larger andheavier construction than the strips lill and H9 respectively which areemployed at the side edges of the ski. However, it will be understoodthat the general construction and function of the strips |3| and |35 arein general similar to the construction and function of the strips Il andAabove-described.

It is obvious, furthermore, that other adaptations of the means hereindisclosed forattaching the protective edge strips may be also employedto attach the intermediate strips.

While certain novel features of the invention have been disclosed andare pointed out in the annexed claims, it will be understood thatvarious omissions, substitutions and changes may be made by thoseskilled in the art without departing from the spirit of the invention.

`What is claimed is:

1. In a ski, a body member, a reenforcing strip comprising a pluralityof sections of laminated metal, each section having a base strip withmeans for attaching to the ski body and an outer strip for running onthe snow, each inner strip having at one end a notch and at the otherend a tongue, the adjoining strips substantially abutting with the endson the outer strips in engagement and the tongues on the inner stripsseated in the notches of the adjoining inner strips, said tonguesprojecting from the ends of their respective sections and seated underthe ends of the adjoining sections.

2. A ski edge comprising an inner strip and an outer strip securedtogether, said inner strip having spaced openings, screws in saidopenings, said openings having a dimension smaller than the screw headswhereby the screws may attach said ski edge to a ski body, said outerstrip having holes in line with said screws, the minimum diameter ofsaid holes being less than the maximum diameter of said screw heads,whereby said screws and ski edge may be pre-assembled before attachingto a ski and said outer strip holes permit access of a screw driver todrive the screws into the ski body.

3. A ski edge comprising an inner strip and an outer strip securedtogether, said inner strip having spaced beveled openings, bevel headedscrews in said openings, said openings having a dimension smaller thanthe screw heads whereby the beveled heads of the screws may engage thebeveled surfaces on said openings and the tops of said screws aresubstantially iiush with the outer surface of said inner strip, saidouter strip having holes in line with said screws, the minimum diameterof said holes being less than the maximum diameter of said screw heads,whereby said screws and ski edge may be pre-assembled before attachingto a ski and said outer-strip holes permit access of a Screw driver todrive the screws into the ski.

4. A ski edge comprising inner and outer strips secured together inlaminated relationship, said inner strip having beveled openings toreceive bevel headed attaching screws which go into the body of the ski,said inner strip having openings between the attaching openings tolighten the construction and to improve the flexibility, said outerstrip being welded to said inner strip and engaging over the heads ofsaid screws, said strips being divided into relatively short sectionsextending, end to end, lengthwise of the ski.

`5. A ski edge strip vcomprising an inner strip vand 'an outer stripwelded together, said inner strip having spaced keyhole slots, thenarrow portions of said keyhole slots having beveled sides, bevel headedscrews seated in the narrow portions of said keyhole slots with theirheads against said outer strip, said outer strip having holes in linewith said screws, the minimum diameter of said holes being less than themaximum diameter of said screw heads, said outer strip holes havingbevel edges to retain ller material, said inner strip having holesintermediate said keyhole slots to increase the flexibility of thecomposite strip, whereby said screws may be pre-assembled in saidkeyhole slots and said strips and screws may be appliedto the ski as aunit.

6. A ski edge comprising an inner strip and an outer strip weldedtogether, said inner strip having spaced keyhole slots, the narrowportions of said keyhole slots having beveled sides, bevel headed screwsseated in the narrow portions of said keyhole slots with the headsagainst said outer strip, said outer strip having holes in linewith-said screws, the minimum diameter of said holes being less than themaximum diameter oi said screw heads, whereby said screws may bepreassembled in said keyhole slots and said strips and screws may beapplied to the ski as a unit.

7. A ski edge comprising an inner strip and an outer strip securedtogether, said inner strip having spaced keyhole slots, screws seated inthe narrow portions of said keyhole slots with their heads against saidouter strip, said outer strip having holes in line with said screws, theminimum diameter of said holes being less than the maximum diameter ofsaid screw heads, whereby said screws may be pre-assembled in saidkeyhole slots and said stripsand screws may be applied to the ski as aunit.

